Звезданутые полукольца и их применения

http://r6.ca/blog/20110808T035622Z.html

I would like to introduce you to a very general algorithm that I like to call the Gauss-Jordan-Floyd-Warshall-McNaughton-Yamada algorithm. With this simple algorithm (an algorithm whose implementation is not very much longer than its name) you can solve almost half of the problems you might encounter in computer science.

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